Moon Byul already showed her unlimited potential to develop in music as she was recognized with her powerful rap skills, performances and sensitive skills to make raps as a member of MAMAMOO. In this album, she has come to the fans as an all-around musician by showing her stable singing skills. In the music video of the same title track as the album ‘SELFISH’, she plays a sloppy character with cute confidence and her lovely image as if she’s in clothes that suits her makes us make a smile like her mom.